I never really understood algebra, geometry, calculus (calculus...never went there!)etc. Couldn't really help my kids with their math in school.
Never understood why I couldn't get with it...recently saw one of those "Great Courses" brochures. "Quantum Mechanics" was on sale so I thought this is my last chance to really try to understand this world ( me and Plank and Einstein) so I ordered the DVDs and dutifully watched and listened to this Prof. get all excited about Bozons and Interferometers, etc. I watched every lesson for a month and now I don't ever have to do that again. And don't ask me anything...